Britain at Low Tide S02E03 - The Clyde

In Glasgow Tori explores the complex relationship between the River Clyde and the city it made. She finds evidence of a busy Iron Age waterway. She traces the various attempts to make the river deeper to get ships into the heart of the city, which culminated in the building of an enormous wall to channel the water; and she discovers that a strange, odd-shaped vessel in a boat graveyard was instrumental in that work.